National Institute of Metrology, China

Wenkui He

Xiang Fang

Feng Tian

Zhen Liu

Xingchuang Xiong

Yichuan Tang

The present invention discloses a trusted alliance block chain digital calibration certificate system and an operation method therefor. The system comprises: a distributed ledger system () of a distributed storage system based on a hyperledger fabric; a CA system () for management of all entity identity certificates and registration of identities in the system; a UTC time calibration server () for providing a UTC time calibration service for all block chain node servers of the system; and a digital calibration certificate subsystem () for generating, by means of alliance management, instrument organization management, and calibration institution management, a digital calibration certificate from calibration certificate data by a digital signature technology, extracting related entity information, and forming original information of multiple data blocks. The system can overcome the shortcomings of existing block chain technology-based digital calibration certificate technologies by establishing a calibration chain and a traceability chain which are reliable, trusted, secure, and continuously growing.

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Beijing, China

Wenkui He